OALib Journal期刊
ISSN: 2333-9721
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基于时间—振幅双γ模型的pp-ps波联合反演
Keywords: pp-ps波联合反演,双γ模型,泊松比,模拟退火
Abstract:
?在常规pp-ps波反演中利用走时计算纵横波速度比(γ)模型以对pp波、ps波进行时间匹配,这在构造复杂或岩性横向变化剧烈区会引起严重误差;另外常规pp-ps波反演通常假设γ=2来进行,这往往导致反演结果不准确。因此,本文介绍一种利用时间走时和振幅能量计算的双γ模型方法来求取最佳γ,使得pp波和ps波得到最佳匹配;在此基础上利用纵波截距、梯度和横波梯度三个独立参数反演得到纵波速度、横波速度和密度及泊松比等岩性参数。反演过程使用模拟退火方法进行全局寻优,可以有效避免局部极值。将该方法应用到苏里格气田某区块,预测结果的总符合率达到80%以上。
References
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[3] | 刘振武,撒利明,张明等.多波地震技术在中国部分气田的应用和进展[j].石油地球物理勘探.2008,43(6):668-672??浏览
|
[4] | 王喜双,甘利灯,易维启等.油藏地球物理技术进展.石油地球物理勘探,2006,41(5);606-613wangxi-shuang,ganli-deng,yiwei-qietal.technicalprogressofreservoirgeophysics.ogp2006,41(5):606-613
|
[5] | 赵邦六.多分量地震勘探在岩性气藏勘探开发中的应用.石油勘探与开发,2008,35(4):397-409zhaobang-liu.applicationofmulti-componentscis-micexplorationintheexplorationandproductionoflithologicgasreservoirs.petroleumexplorationanddevelopment,2008,35(4):397-409
|
[6] | 叶泰然,付顺,吕其彪等.多波地震联合反演预测相对优质储层.石油与天然气地质,2009,30(3):357-362yetai-ran,fushun,lvqi-biaoetal.applicationofmultiwavejointinversiontothepredictionofrcla-tivclyhigh-qualityreservoirs.oilandgasgeology,2009,30(3):357-362
|
[7] | 陈天胜,刘洋,魏修成.纵波和转换波联合.avo反演方法研究.中国石油大学学报,2006,30(1):33-37chentian-sheng,liuyang,weixiu-cheng.jointavoinversionofp-pandp-svseismicdata.jour-nalofchinauniversityofpetroleum,2006,30(1):33-37
|
[8] | garottar,grangerpyetal.combinedinterpreta-tionofppandpsdataprovidesdirectaccesstoelasticrockproperties[j].theleadingedge.2002,21(6):532-535
|
[9] | 杨午阳,王丛镇.利用叠前.ava同步反演预测储层物性参数.石油地球物理勘探,2010,45(3);414-417yangwu-yang,wangcong-bin.utilizingpre-stacksimultaneousinversiontopredictreservoirphysicalproperties.ogp,2010,45(3):414-417
|
[10] | 孙思敏,彭仕必.基于模拟退火算法的地质统计学反演方法.石油地球物理勘探,2007,42(1);38-43sunsi-min,pengshi-mi,inversionofgcostatisticsbasedonsimulatedannealingalgorithm.ogp,2007,42(1):38-43
|
[11] | dariuh,uarottaretal.simultaneousinversionofppandpswaveavo/avadatausingsimulatedan-nealing.segtechnicalprogramexpandedab-stracts,2003,22:120-123
|
[12] | 黄德济,贺振华,赵光生等.多波层位对比的原则与方法.物探化探计算技术,1996,18(3);194-205huangde-ji,hezhen-hua,zhaoxian-shengetal.principlesandmethodsinseismiclayercorrelation.computingtechniquesforgeophysicalandgeo-chemicalexploratiom,1996,18(3):194-205
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